Angelia Shull teaches pets and their owners to reclaim their health and well-being through color therapy. As one of our newest Certified Practitioners, Angelia introduces Complementary Color Therapy in a surprising way. Find out how she was nudged in this direction and how you might help your pets in this way. Per Natural Pet Healthcare: We know that dogssee Violet, Indigo, Blue, Yellow and Red, including various shades of these colors. Green, Yellow and Orange are too similar to dogs for them to tell them apart. Cats see Purple, Blue, Green and Yellow. Red, Orange and Brown appear as shades of Grey or Purple. Still, color therapy has been successfully used in dogs, cats and horses, as well as pocket pets and birds.